7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHFLashing red light on temp. dial
Leading reported evidence
Check coolant level - ok, put some wd40
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
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Performed · outcome unconfirmed
I too checked coolant level - OK, put some WD40 on the coolant level sensor - no change and checked the rads for leaf blockage etc - nothing there.
Leading evidence: 'Check coolant level - ok, put some wd40' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check coolant level - ok, put some wd40' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Performed · outcome unconfirmed
I too checked coolant level - OK, put some WD40 on the coolant level sensor - no change and checked the rads for leaf blockage etc - nothing there.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Unsuccessful attempt
At my June Service Paragon changed the coolant temp sensor on the block and the thermostat although there was nothing obviously failed about them. I too checked coolant level - OK, put some WD40 on the coolant level sensor - no change and checked the rads for leaf blockage etc - nothing there.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Unsuccessful attempt
At my June Service Paragon changed the coolant temp sensor on the block and the thermostat although there was nothing obviously failed about them. I too checked coolant level - OK, put some WD40 on the coolant level sensor - no change and checked the rads for leaf blockage etc - nothing there.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
7 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Porsche Club GB: 1 discussions
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Generation: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi all,
Noticed on the way to work this morning I have a flashing red light on the end of my temperature dial, even though it was displaying normal temps.
I turned the car on and off and it didn't come back on the second time...
However few questions
1) What does it mean?
2) Is the car safe to drive home to get looked at?
Thanks very much in advance.
Sam
It's indicating that the water level is low. Most likely cause:
1) Water reservoir cap leaking
2) Pinhole leak in reservoir itself
3) Front radiator rotted & leaking
You should be OK to drive it, just keep an eye on the water level until you get it fixed.
I had that recently for the first time in 6 years.
Agree its the water level low and NOT overheating. I think its steady if overheating and you will see the temp gauge much higher if that was the case.
Safe to drive, just keep an eye on the temp gauge.
There are a range of faults that illuminate that light, the rate of flashing acts as a diagnostic function, so you should be able to pinpoint any issue by refering to Richards post here...
http://www.porscheclubgbforum.com/tm.asp?m=330170
As Sam isn't a member he won't be able to access that thread. (Another benefit of Club membership [
] ) Here is the part which descibes the warning light:
Four functions of the coolant warning light:
1. Engine coolant level too low
"” light flashes slowly (0.5 Hz)
2. Engine compartment temperature too high
"” light flashes slowly (0.5 Hz) (engine compartment blower might be faulty)
3. Engine coolant temperature too high
"” light is lit; pointer on the right
4. Temperature sensor at water outlet faulty
"” light flashes rapidly (1 Hz); pointer on the right
Note
The temperature warning in point three is indicated if the conditions "engine coolant temperature too high" and "engine coolant level too low" are present simultaneously
(1Hz = 1 flash per second. 0.5Hz = 2 seconds per flash)
I too had this. Mine was the 1Hz flash. Only seemed to happen when the OAT is below 10-12 degrees when the gauge failed as the needle reaches 60 degrees accompanied by the 1Hz flash and 'temp gauge failure' on the OBC. After another 3-10 miles the gauge came back to life, the light stopped flashing and the gauge climbed to its normal op temp. I had this every journey from Oct-March then as we moved into Spring/Summer and the OAT stayed above 10-12 degrees the problem stopped. At my June Service Paragon changed the coolant temp sensor on the block and the thermostat although there was nothing obviously failed about them. I too checked coolant level - OK, put some WD40 on the coolant level sensor - no change and checked the rads for leaf blockage etc - nothing there. After the inevitable 'oh dear' panic when it first happened and frantic searching around the engine for problems, I became more sanguine with time and as the problem did not seem to affect the car's performance I just monitored it until time for its Service at Paragon. I await the coming winter with interest.
joys of owning a Porsche
